Finding the Fourth Proportional to 97,578.95, 134,644.07 and 55,121.99
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Solution
The fourth proportional to 97,578.95, 134,644.07 and 55,121.99 is: 76,059.94
Step by Step Solution
- Step 1: Write the proportion equation
97,578.95 : 134,644.07 = 55,121.99 : x - Step 2: Convert to fraction form
97,578.95/134,644.07 = 55,121.99/x - Step 3: Cross multiply
97,578.95x = 134,644.07 × 55,121.99 - Step 4: Simplify right side
97,578.95x = 7,421,848,544.68 - Step 5: Solve for x
x = 7,421,848,544.68/97,578.95 - Step 6: Final answer
x = 76,059.94
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.